Ri measurement/notification apparatus and measurement/notification program
a technology of ri and measurement apparatus, applied in the direction of bioelectric signal measurement, medical science, diagnostics, etc., can solve the problems of inability to quickly determine which electrode of a cardiac catheter measures an abnormal value, and no measurement apparatus which detects in real time an ri
Active Publication Date: 2013-09-19
NIHON KOHDEN CORP
View PDF3 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The invention provides an apparatus and program for measuring and notifying the presence of a rotor in the heart. The apparatus includes a display for showing waveform data of an intracardiac electrocardiogram, a waveform data acquiring section for acquiring waveform data, an RI calculating section for calculating an RI value based on the waveform data, and a notifying section for notifying if the RI value exceeds a preset threshold. The notification may be performed by displaying information that the value exceeds the threshold, or by associating the value with a portion of the waveform data that shows abnormal activity. The invention helps to improve the accuracy of identifying rotors and aid in the diagnosis of cardiovascular disease.
Problems solved by technology
Conventionally, however, there is no measurement apparatus which detects in real time an RI from an intracardiac electrocardiogram of a heart during atrial fibrillation, and which notifies that an abnormality occurs in the RI value.
Also Non-patent Document 1 does not disclose such an apparatus.
In the case where a plurality of RI values are to be automatically detected, therefore, an evaluating person cannot rapidly determine which one of electrodes of a cardiac catheter measures an abnormal value.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025]Hereinafter, an embodiment of an RI measurement / notification apparatus of the invention will be described with reference to the accompanying drawings.
[0026]An RI measurement / notification apparatus 10 shown FIG. 1 includes: a waveform acquiring section 11 (an example of the waveform data acquiring section) for acquiring data of an intracardiac electrocardiogram waveform which comply with predetermined conditions, from measured intracardiac electrocardiogram waveforms; an RI calculating section 12 for calculating an RI (Regularity Index) value from an intracardiac electrocardiogram waveform; a notifying section 13 for, in the case where the RI value satisfies the predetermined conditions, notifying that the condition is satisfied; a displaying section 15 for displaying waveform data of an intracardiac electrocardiogram, and data indicating that the RI value satisfies predetermined conditions; and a controlling section 14 for controlling these sections. The RI value means an inde...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An RI measurement / notification apparatus includes: a displaying section configured to display waveform data of an intracardiac electrocardiogram; a waveform data acquiring section configured to acquire waveform data in a preset waveform data acquisition time period from an intracardiac electrocardiogram during atrial fibrillation; an RI calculating section configured to calculate an RI value based on the waveform data acquired by the waveform data acquiring section; and a notifying section configured to, in a case where the RI value calculated by the RI calculating section exceeds a preset threshold, notify that the value exceeds the threshold.
Description
BACKGROUND OF THE INVENTION[0001]The present invention relates to an RI measurement / notification apparatus and measurement / notification program for notifying that an abnormality occurs in an RI value (an index value for determining an existence of a rotor).[0002]Atrial fibrillation is a frequent tachyarrhythmia. Researches on finding a mechanism for maintaining atrial fibrillation, and a method of treating it have been conducted. Examples of the treatment method are drug treatment (symptomatic treatment), catheter ablation (radical treatment). Among the methods, catheter ablation is treatment in which the behavior of a heart during atrial fibrillation is analyzed based on an intracardiac electrocardiogram, a portion where an electric signal (excitation wave) called a rotor is generated is identified, and the portion is removed away to suppress the generation of a rotor.[0003]As a method of analyzing an intracardiac electrocardiogram of a heart during atrial fibrillation, for example...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): A61B5/044A61B5/046A61B5/04A61B5/361
CPCA61B5/044A61B5/046A61B5/04012A61B5/316A61B5/339A61B5/361
Inventor TAKIZAWA, KOJINISHIHARA, TATSUOIWANAGA, YUUHO
Owner NIHON KOHDEN CORP